Nascom N78CWSHK-STHS, N78CW-STSD, N78CG-SWSD, N78CG-STFB, N78CWSHK-STSD Specsheet
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N78C
3/4” RECESSED WIDE GAP STANDARD DOOR CONTACT SET
DESCRIPTION
Nascom’s N78C Series is a 3/4” recessed wide gap door contact designed for
residential, commercial and industrial steel and wood door applications.
The N78C is the installer’s choice of contact conguration because the contact set is designed to cut installation times and helps to prevent false alarms
caused by shifting or warping doors.
The N78C Series is designed for installation in every type of hinged door
including wood doors.
FEATURES
• SNAP FIT ON STEEL - NO GLUE REQUIRED • ENCAPSULATED HERMETICALLY SEALED CONTACTS
• 12” 22AWG WIRE LEADS • POLYPROPYLENE HOUSINGS
• WIDE GAP - N35 NdFeB RARE EARTH MAGNET • LISTED TO UL634 STANDARD
ORDERING INFORMATION
CONTACT RATING
PART
NUMBER
COLOR
OPERATE
GAP
(in inches)
(Max DC/Peak AC Resistive)
SWITCHING CARRY
V I V I
CLOSED LOOP, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N78CB/ST
N78CG/ST
N78CT/ST
N78CW/ST
BROWN
GREY
TAN
WHIITE
1.00 to 2.00 200 VDC 0.5 Amps 10vA 1.5 Amps 150 mOhms
DUAL CLOSED LOOP, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N78CB/ST2CR
N78CG/ST2CR
N78CT/ST2CR
N78CW/ST2CR
BROWN
GREY
TAN
WHIITE
1.00 to 2.00 200 VDC 0.5 Amps 10vA 1.5 Amps 150 mOhms
OPEN LOOP, NORMALLY CLOSED, 1FB, SWITCH/MAGNET SET:
N78CB/STFB
N78CG/STFB
N78CT/STFB
N78CW/STFB
BROWN
GREY
TAN
WHIITE
0.75 to 1.25 30 VDC 0.2 Amps 3vA 0.5 Amps 150 mOhms
SINGLE POLE DOUBLE THROW, SWITCH/MAGNET SET:
N78CB/STSD
N78CG/STSD
N78CT/STSD
N78CW/STSD
BROWN
GREY
TAN
WHIITE
0.75 to 1.25 30 VDC 0.2 Amps 3vA 0.5 Amps 150 mOhms
DOUBLE POLE DOUBLE THROW, SWITCH/MAGNET SET:
N78CB/STDD
N78CG/STDD
N78CT/STDD
N78CW/STDD
BROWN
GREY
TAN
WHIITE
0.75 to 1.25 30 VDC 0.2 Amps 3vA 0.5 Amps 150 mOhms
HIGH SECURITY, NORMALLY OPEN, 1FA, SWITCH/MAGNET SET:
N78CB/STHS
N78CG/STHS
N78CT/STHS
N78CW/STHS
BROWN
GREY
TAN
WHIITE
0.1875 to
0.5000
300 VDC
0.25
Amps
10vA
Royne Industries LLC, dba NASCOM
|
P: 800.843.5530
|
F: 800.727.4041
0.25
Amps
STATIC
CONTACT
RESISTANCE
(50mV, 100mA)
150 mOhms
initial
|
www.nascominc.com
DWG No. 140204-02 Rev. 1
38
1.100
27.94
.060
1.52
.375
9.53
.730
18.54
.490
12.45
.910
23.11
FRONT VIEW
TOP
VIEW
1.100
27.94
.060
1.52
.375
9.53
.730
18.54
.910
23.11
.490
12.45
FRONT VIEW
TOP
VIEW
WIRING SCHEMATIC
N78C
3/4” RECESSED WIDE GAP STANDARD DOOR CONTACT SET
SWITCH
CONTACT
CLOSED LOOP,
NORMALLY OPEN CONTACT
COMMON
(BROWN)
COMMON
(BROWN)
OPEN LOOP,
NORMALLY CLOSED CONTACT
NC, OPEN LOOP (WHITE)
NO, CLOSED LOOP (RED)
NC, OPEN LOOP (WHITE)
NC, OPEN LOOP (RED)
SWITCH
CONTACT
COMMON
(BROWN)
DUAL CLOSED LOOP,
NORMALLY OPEN CONTACTS
DPDT, DOUBLE POLE DOUBLE THROW SPDT, SINGLE POLE DOUBLE THROW
DIMENSIONS - IN [mm]
NC, OPEN LOOP (WHITE)
NO, CLOSED LOOP (RED)
SWITCH
MAGNET
INSTALLATION INSTRUCTIONS
• Mark location for the switch on the door frame and mark the location for the magnet on the door.
• Make sure switch and magnet hole locations are aligned.
• Drill holes for the switch and magnet using a 3/4” Hole Saw for steel doors or a Forstner bit for wood doors.
• Press the magnet into the hole in the door until seated rmly against the head. Silicone may be used to secure the
magnet in wood doors.
• Connect the switch leads to the alarm circuit conductors. Hold the wire leads (not the switch housing) when cutting and
stripping to prevent damage to the switch.
• Feed the switch conductors into the hole and insert the switch housing pressing rmly until seated. Silicone may be used
to secure the switch in wood doors.
• Test switch for correct operation and make sure gap performance is acceptable.
Royne Industries LLC, dba NASCOM
|
P: 800.843.5530
|
F: 800.727.4041
|
www.nascominc.com
DWG No. 140204-02 Rev. 1
39
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